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Object IDs in DR1 differ from DR2 and later releases.

DR4: Object 179837579 (SMSS J172501.65-202202.4)

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Data releaseDR4
RA (deg)261.2569
Dec (deg)-20.3673
Galactic lon. (deg)4.7440
Galactic lat. (deg)8.5388
E(B-V) (SFD98) (mag)0.688
E(B-V) (GNILC) (mag)0.567 ± 0.028
Nearest DR4 source 179837529 (6.2 arcs away)
2nd-nearest DR4 source 179837523 (6.8 arcs away)
3rd-nearest DR4 source 179837590 (7.1 arcs away)
Times observed31
Total bad pixels1
Observing flags3

Magnitudes

Filter u v g r i z
PSF mag. — — 18.795 ± 0.034 18.048 ± 0.022 17.497 ± 0.018 17.159 ± 0.019
Petrosian mag. — — 18.684 ± 0.065 17.815 ± 0.106 17.579 ± 0.049 17.342 ± 0.046

2 x 2 arcmin

Image cutouts

See all image cutouts for this object here.
Images shown are the best images available from DR4, as determined by their coverage and approximate photometric zero-point.

Photometry measurements

Filter Image ID Magnitude (APC05) Flags Exp time (s) Image Quality
(1=best to 3)
g 20140729111106 18.941 ± 0.179 512,0 5 2
g 20190507143127 18.780 ± 0.047 3,0 100 2
r 20140722114203 18.238 ± 0.132 0,0 5 2
r 20140729111131 17.904 ± 0.096 0,0 5 2
r 20160420170109 18.067 ± 0.152 0,0 5 2
r 20190505165926 18.118 ± 0.048 3,0 100 2
r 20190507143327 18.041 ± 0.045 3,0 100 2
i 20140719115004 17.478 ± 0.092 0,0 10 2
i 20140722114229 17.386 ± 0.078 0,0 10 2
i 20140729111202 17.391 ± 0.078 0,0 10 2
i 20150901084153 17.491 ± 0.044 1,0 100 2
i 20150901084554 17.466 ± 0.044 1,0 100 2
i 20160420170134 17.537 ± 0.104 0,0 10 2
i 20180804082838 17.633 ± 0.055 0,0 100 2
i 20190505170526 17.465 ± 0.046 3,0 100 2
i 20190509140533 17.546 ± 0.050 1,1 100 2
i 20190720124743 17.530 ± 0.069 3,0 100 2
i 20200513170714 17.589 ± 0.056 3,0 100 2
i 20200513190610 17.598 ± 0.055 0,0 100 2
i 20210407183626 17.483 ± 0.103 0,0 10 2
z 20140722114259 17.108 ± 0.076 0,0 20 2
z 20140729111235 17.194 ± 0.082 0,0 20 2
z 20150901084353 17.196 ± 0.051 1,0 100 2
z 20150901084754 17.136 ± 0.052 0,0 100 2
z 20160420170204 17.272 ± 0.108 0,0 20 2
z 20180804083039 17.295 ± 0.063 0,0 100 2
z 20190505170726 17.095 ± 0.052 0,0 100 2
z 20190509140733 17.287 ± 0.065 0,0 100 2
z 20190720124943 17.158 ± 0.070 3,0 100 2
z 20200513170916 17.167 ± 0.057 0,0 100 2
z 20200513190811 17.320 ± 0.078 0,0 100 2
z 20210407183658 17.174 ± 0.111 0,0 20 2

Gaia DR3 data
Matching radius: 15"

Best match Second match
Distance (arcsec) 0.2 1.73
GAIA source ID 4121286794372270080 4121286794342370304
Bp mag. 18.693 --
G mag. 18.117 20.251
Rp mag. 17.057 --
Bp/Rp excess 1.544 --
Parallax (mas) 3.022 ± 0.727 0.171 ± 0.626
PM RA (mas/yr) -4.820 ± 0.897 -1.280 ± 0.856
PM Dec (mas/yr) 6.450 ± 0.573 -1.725 ± 0.527
A.E.N. (mas) 5.681 ± 385.073 0.0 ± 0.000

UV to IR data
Matching radius: 2"

Filter Magnitude1
FUV -- ± --
NUV -- ± --
u -- ± --
g 18.893 ± 0.007
r 17.973 ± 0.003
i 17.506 ± 0.005
z 17.226 ± 0.005
Y -- ± --
J 15.871 ± 0.009
H -- ± --
K 15.281 ± 0.018
W1 15.274 ± 0.023
W2 15.525 ± 0.056
W3 12.278 ± 0.388
W4 8.339 ± --
1Magnitude sources
FUV/NUV: AB mag (calibrated) from GALEX
ugriz: AB mag (Kron) from NOAO Source Catalog
YJHK: Vega mag from VISTA (2" aperture) or 2MASS PSC
W1-W4: Vega mag from CatWISE2020 or AllWISE (profile mag). No error value means the stated value is an upper limit.